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	Prefix	Description
	147.229.0.0/17	Brno University of Technology
	147.229.128.0/18	Brno University of Technology
	147.229.192.0/19	Brno University of Technology
	147.229.224.0/19	Brno
	185.62.108.0/23	Brno University of Technology
	185.149.204.0/22	M Computers s.r.o.
	185.149.204.0/24	-
	185.149.205.0/24	-
	2001:67c:1220::/46	Brno University of Technology
	2a03:2e0::/32	-
	2a03:2e4::/30	-
	2a07:6bc0::/29	M Computers s.r.o.

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Network Policy

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How are upstreams and downstreams calculated?

Upstreams

	ASN	Description	IPv4	IPv6
	AS16019	Vodafone Czech Republic a.s.	✔	✔
	AS15935	ha-vel internet s.r.o.	✔	✔
	AS2852	CESNET z.s.p.o.	✔	✔

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Peers

	ASN	Description	IPv4	IPv6
	AS16019	Vodafone Czech Republic a.s.	✔	✔
	AS15935	ha-vel internet s.r.o.	✔	✔
	AS204860	NetX Networks a.s.	✔	✔
	AS2852	CESNET z.s.p.o.	✔	✔
	AS210604	Pernix systems s.r.o.	✔	✔
	AS202872	KME, spol. s r. o.	✔	✔
	AS201263	Brno University of Technology	✔	✔
	AS201931	LBnet.cz s.r.o.	✔	✔
	AS207167	mapnet IT services s.r.o.	✔	✔
	AS34222	ZONER a.s.	✔	✔
	AS212138	Technicke site Brno, akciova spolecnost	✔	✘
	AS24971	MasterDC s.r.o.	✘	✔
	AS15169	Google LLC	✔	✔

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Downstreams

	ASN	Description	IPv4	IPv6
	AS204860	NetX Networks a.s.	✔	✔
	AS210604	Pernix systems s.r.o.	✔	✔
	AS202872	KME, spol. s r. o.	✔	✔
	AS201263	Brno University of Technology	✔	✔
	AS201931	LBnet.cz s.r.o.	✔	✔
	AS207167	mapnet IT services s.r.o.	✔	✔
	AS34222	ZONER a.s.	✔	✔
	AS212138	Technicke site Brno, akciova spolecnost	✔	✘
	AS24971	MasterDC s.r.o.	✘	✔

aut-num:        AS197451
as-name:        VUTBR-AS
org:            ORG-BUOT1-RIPE
import:         from AS2852 accept ANY
import:         from AS6830 accept ANY
import:         from AS2819 accept ANY
import:         from AS60143 accept AS-BR-IX-RS
import:         from AS15935 accept ANY
export:         to AS2852 announce AS-VUTBR
export:         to AS6830 announce AS-VUTBR
export:         to AS2819 announce AS-VUTBR
export:         to AS60143 announce AS-VUTBR
export:         to AS15935 announce AS-VUTBR
mp-import:      afi ipv6 from AS2852 accept ANY
mp-import:      afi ipv4 from AS2852 accept ANY
mp-export:      afi ipv6 to AS2852 announce AS197451
mp-export:      afi ipv4 to AS2852 announce AS197451
admin-c:        DUMY-RIPE
tech-c:         DUMY-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         VUTBR-MNT
created:        2010-12-08T11:00:29Z
last-modified:  2018-09-04T10:56:36Z
source:         RIPE
remarks:        ====================================================
remarks:        Imported from:
remarks:        rt:197451:100 - Exchange points + direct peering
remarks:        rt:197451:101 - NIX.CZ
remarks:        rt:197451:103 - SIX.SK
remarks:        rt:197451:104 - NIX.SK
remarks:        rt:197451:105 - BR-IX
remarks:        rt:197451:106 - Peering.cz
remarks:        rt:197451:199 - direct peering
remarks:
remarks:        rt:197451:200 - Transit upstreams
remarks:        rt:197451:201 - Liberty Global
remarks:        rt:197451:202 - T-Mobile
remarks:        rt:197451:203 - CESNET
remarks:
remarks:        rt:197451:300 - Customers
remarks:        rt:197451:301 - Internal networks
remarks:
remarks:        Export to:
remarks:        rt:197451:100x - exchange points + direct peering
remarks:        rt:197451:1000 - shorten path to IXP
remarks:        rt:197451:200x - transit upstreams
remarks:
remarks:        where x is the number of prepends of AS197451
remarks:        (1-3; 9 - not anounce)
remarks:        =====================================================
remarks:        ****************************
remarks:        * THIS OBJECT IS MODIFIED
remarks:        * Please note that all data that is generally regarded as personal
remarks:        * data has been removed from this object.
remarks:        * To view the original object, please query the RIPE Database at:
remarks:        * http://www.ripe.net/whois
remarks:        ****************************


organisation:   ORG-BUOT1-RIPE
org-name:       Brno University of Technology
country:        CZ
org-type:       LIR
address:        Dummy address for ORG-BUOT1-RIPE
# Email removed, Log into bgp.tools to see whois emails
abuse-c:        CA6319-RIPE
mnt-ref:        RIPE-NCC-HM-MNT
mnt-ref:        VUTBR-MNT
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         VUTBR-MNT
created:        2014-06-27T15:02:34Z
last-modified:  2023-07-28T06:09:05Z
source:         RIPE
remarks:        ****************************
remarks:        * THIS OBJECT IS MODIFIED
remarks:        * Please note that all data that is generally regarded as personal
remarks:        * data has been removed from this object.
remarks:        * To view the original object, please query the RIPE Database at:
remarks:        * http://www.ripe.net/whois
remarks:        ****************************

Last Update: 2026-03-11T03:24:03Z UTC

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Member of the following AS-SETs

-	Member	ASN Count
RIPE	as-netxas	6
RIPE	as-vutbr	36
RIPE	as-retn-actual-v4	12735
RIPE	as2852:as-cesnet-nix-fenix	19
RIPE	as2852:as-cesnet	20
RIPE	as-gtscz-cust	137
RADB	as-hurricanev6	20659
RIPE	as-cesnet6	6
RIPE	as-retn-actual-v6	3924